Check out Watt’s Up With That? for some very neat photos of a smoke ring blown by the Eyjafjallajokull Volcano, which has been wreaking havoc in Iceland and Europe for weeks, now.
And I am not going to make any jokes about the Earth enjoying a post-eruption smoke. Nope. Not at all. 🙂
(Also be sure to see the videos of fun with fluid rings.)
A Seat By The Fire 